Mirrors reflect visible light. The DEW is probably not in the visible spectrum and would not be reflected by the mirror. EG, radio waves pass through a mirror (you don't have a radio dead zone on one side of a mirror) and infrared passes through a mirror (apply heat to one side, the other side will get hot as well), even though light doesn't.
Mirrors reflect visible light. The DEW is probably not in the visible spectrum and would not be reflected by the mirror. EG, radio waves pass through a mirror (you don't have a radio dead zone on one side of a mirror) and infrared passes through a mirror (apply heat to one side, the other side will get hot as well), even though light doesn't.